MPs have called for a ban on two Chinese CCTV systems that are used by councils, schools, and police forces across the UK. A group of 67 MPs and Lords including Lib Dem leader Sir Ed Davey and four ex-Conservative ministers is urging the government to ban the sale and use of Hikvision and Dahua cameras. The calls come amid concerns the CCTV cameras can recognise faces, eavesdrop on conversations, and judge people's moods. The Uyghurs, a predominantly Muslim ethnic group, are the majority population in Xinjiang. More than a million Uyghurs and other minorities are estimated to have been detained at camps in Xinjiang, where allegations of torture, forced labour and sexual abuse have emerged.